Gully Prospecting and Mining
September 2014
This article is about our recent gold prospecting adventure, which has yielded over 20 ounces of specimen gold—with more to come.
This article is about our recent gold prospecting adventure, which has yielded over 20 ounces of specimen gold—with more to come.
Wilfley Tables—Repair, Rebuild & Set Up
September 2014
I researched the Internet and found a number of table makers, but technology has changed in the last 25 years. No one could sell me a kit for a new deck with wooden riffles...
I researched the Internet and found a number of table makers, but technology has changed in the last 25 years. No one could sell me a kit for a new deck with wooden riffles...
Designing and Evaluating Placer Gold Recovery Plants
September 2014
For this article, I am focusing on industrial production plants that can handle 10 cubic yards per hour or more and would be fed by a loader or other heavy equipment...
For this article, I am focusing on industrial production plants that can handle 10 cubic yards per hour or more and would be fed by a loader or other heavy equipment...
Mining Journal Honored as Prospecting Magazine of the Year!
September 2014
Finding Streams of Gold
September 2014
Without knowing or even thinking about it, I had put together a map that showed me a pattern of the ancient Sacramento River channel. I also had a distinct picture of where the ancient channels of several other creeks and rivers were running.
Without knowing or even thinking about it, I had put together a map that showed me a pattern of the ancient Sacramento River channel. I also had a distinct picture of where the ancient channels of several other creeks and rivers were running.
This is Why You Check Your Tailings
September 2014
The nugget was cast aside with larger rocks during the screening process, but it was found later by an employee...
The nugget was cast aside with larger rocks during the screening process, but it was found later by an employee...
Lode or Placer: What Difference Does It Make?
September 2014
This explains the large difference in particle sizes between placers and hydrothermal lode deposits, but also means that while the mining may be similar in some cases, the sampling and recovery techniques are usually quite different.
This explains the large difference in particle sizes between placers and hydrothermal lode deposits, but also means that while the mining may be similar in some cases, the sampling and recovery techniques are usually quite different.
New Rules to Impact the Lease/Buy Decision
September 2014
Whether to buy or lease is a question facing many small-scale operators and prospectors even as credit becomes more readily available. While there is no one correct answer that fits every mining operation or business, compared to the simplicity of buying, leasing is far more complicated and may be getting more complex.
Whether to buy or lease is a question facing many small-scale operators and prospectors even as credit becomes more readily available. While there is no one correct answer that fits every mining operation or business, compared to the simplicity of buying, leasing is far more complicated and may be getting more complex.
There's a First Time for Everyone
September 2014
...day one was like watching the Gold Rush television show. He furiously worked the nozzle in an up and down fashion that resembled Jack Hoffman sitting on a backhoe.
...day one was like watching the Gold Rush television show. He furiously worked the nozzle in an up and down fashion that resembled Jack Hoffman sitting on a backhoe.
Appeals Court OKs Permits for Upper Peninsula Mine
September 2014
The $800 million project will provide 300 jobs during production. It will be the only US mine where nickel is the primary targeted mineral, with about 360 million pounds to be extracted.
The $800 million project will provide 300 jobs during production. It will be the only US mine where nickel is the primary targeted mineral, with about 360 million pounds to be extracted.
Claim Staking Rush Northern Quebec, Canada
March 1999
...at least 10 junior mining companies have been busy pounding stakes in the ground of northern Quebec in hopes of claiming rich nickel deposits.
...at least 10 junior mining companies have been busy pounding stakes in the ground of northern Quebec in hopes of claiming rich nickel deposits.
News from the Editor
August 2014
Our goal is to reach out to the next generation of prospectors and miners who might prefer reading our monthly issues on their desktop computer or portable device.
Our goal is to reach out to the next generation of prospectors and miners who might prefer reading our monthly issues on their desktop computer or portable device.
Ask the Experts
August 2014
What are the tell signs of garnet deposits?
What are the tell signs of garnet deposits?
Ask the Experts
August 2014
Centrifugal bowls versus jigs
Centrifugal bowls versus jigs
Conductive Minerals and Your Metal Detector
August 2014
...most prospectors don't even think about the conductivity of minerals, but there are some that do conduct electricity to a certain degree, so metal detectors will respond to them.
...most prospectors don't even think about the conductivity of minerals, but there are some that do conduct electricity to a certain degree, so metal detectors will respond to them.
A Model Mining Operation
August 2014
After he excavates the ore down to bedrock, he goes over the bedrock with a metal detector to ensure he didn't leave any gold behind before he backfills the area.
After he excavates the ore down to bedrock, he goes over the bedrock with a metal detector to ensure he didn't leave any gold behind before he backfills the area.
BLM Raises Location and Claim Fees
August 2014
The Bureau of Land Management announced an increase in location filing fees and annual maintenance fees for unpatented mining claims, mill sites and tunnel sites.
The Bureau of Land Management announced an increase in location filing fees and annual maintenance fees for unpatented mining claims, mill sites and tunnel sites.
I Finally Made It to Northern Nevada
August 2014
After a while I got a very nice signal and out came a sweet kidney-shaped bit of gold weighing about three grams.
After a while I got a very nice signal and out came a sweet kidney-shaped bit of gold weighing about three grams.
Clarification on Oregon's SB838
August 2014
The 100-yard restriction in SB838 actually applies to all motorized mining for the purpose of extracting gold, silver or any other precious metal that results in the disturbance of vegetation.
The 100-yard restriction in SB838 actually applies to all motorized mining for the purpose of extracting gold, silver or any other precious metal that results in the disturbance of vegetation.
Drilling for Ore
August 2014
In the simplest sense, drills can be divided by their mode of action—percussion, rotary or a mixture of the two.
In the simplest sense, drills can be divided by their mode of action—percussion, rotary or a mixture of the two.
